Wireless Communication Device Sound Signal Embedding Control Information
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Solution Overview
Problem
Wireless communication using wireless LAN can become unstable in event venues, necessitating stronger radio wave intensity through the use of a wireless LAN router, thus requiring a method for simple and stable wireless communication even in poor communication environments.
Innovation Solution
A wireless communication device and system that includes an information wireless communication unit for transmitting control information using a first method, a sound signal transmission unit for transmitting sound signals using a second method, and a selection controller to choose between transmitting control information directly or embedding it in sound signals for transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless LAN is used for transmitting control information in event venues, then communication can be established, but the communication becomes unstable in poor communication environments
Solution Approach 1:
The wireless communication device is equipped with two transmission paths: a first transmission path for direct control information transmission and a second transmission path for embedding control information in sound signals. The selection controller chooses between these paths based on communication environment quality, enabling the device to adapt to both good and poor wireless LAN conditions while maintaining communication stability.
Solution Approach 2:
The system changes the transmission parameter by switching between two different transmission methods: direct control information transmission (first transmission path) and control information embedding in sound signals (second transmission path). This parameter change allows the system to adapt to varying communication environment qualities and maintain reliable communication.
2Reliability
If stronger radio wave intensity is used to reinforce wireless communication, then communication stability improves, but device complexity and infrastructure requirements increase
Solution Approach 1:
Sound signals serve as an intermediary carrier for control information transmission. Instead of relying solely on direct wireless LAN transmission or deploying additional infrastructure like wireless LAN routers, the system embeds control information within sound signals that are already being transmitted, providing a alternative transmission path that does not require additional infrastructure.
3Speed
If control information is transmitted directly using wireless LAN, then transmission speed is fast, but reliability deteriorates in poor communication environments
Solution Approach 1:
The selection controller dynamically switches between the first transmission path (direct control information transmission) and the second transmission path (control information embedding in sound signals) based on the quality of the wireless communication environment. This dynamic adaptation allows the system to maintain both speed and reliability by choosing the appropriate transmission method for current conditions.
Data Source
AI summary
A wireless communication device includes an information wireless communication unit configured to transmit control information by a first wireless communication method; a sound signal transmission unit configured to transmit a sound signal by a second wireless communication method; and a selection controller configured to select any one or both of a first transmission processing of transmitting the control information from the information wireless communication unit by the first wireless communication method and a second transmission processing of embedding the control information in the sound signal and transmitting the control information from the sound signal transmission unit by the second wireless communication method.